Particle tuned mass dampers (PTMDs) have attracted recent attention for reducing seismic demands on large structures. Yet, research on the control performance of PTMDs for soil–structure interaction (SSI) systems under earthquake excitations is non‐existent. This paper presents a comprehensive investigation on the effectiveness of PTMD devices for pile‐supported multistory frames through shaking table tests and simulations with validated numerical models. Particle damping effectiveness is analyzed through comparisons with systems lacking external damping. The test results show that the mitigation effects of PTMDs on the maximum structural accelerations and displacements decrease when SSI effects are present and that particle damping improves control performance of conventional TMDs. Detailed finite element models of the tested specimens are also constructed—including SSI effects—and validated initially against the test data. In these models, the soil nonlinearities are considered using a bounding surface plasticity model, and the PTMD devices are simplified to an equivalent single‐particle damper using an analytical model. The validated numerical models can be used in further parametric studies involving optimal PTMD design and deployment within a performance‐based seismic engineering framework.

中文翻译：

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地震作用下颗粒调谐质量阻尼器装置对桩支撑多层框架的有效性

粒子调谐质量阻尼器（PTMD）最近在减少大型结构的抗震要求方面引起了人们的关注。然而，在地震激励下，PTMD对土壤-结构相互作用（SSI）系统的控制性能尚不存在。本文通过振动台试验和带有经过验证的数值模型进行的仿真，对用于桩支撑多层框架的PTMD装置的有效性进行了全面的研究。通过与缺乏外部阻尼的系统进行比较，分析了颗粒阻尼的有效性。测试结果表明，当存在SSI效应时，PTMD对最大结构加速度和位移的缓解作用减小，并且颗粒阻尼改善了常规TMD的控制性能。还构建了测试样本的详细有限元模型（包括SSI效应），并首先根据测试数据进行了验证。在这些模型中，使用边界表面可塑性模型考虑了土壤非线性，并且使用解析模型将PTMD装置简化为等效的单颗粒阻尼器。经过验证的数值模型可用于进一步的参数研究，包括基于性能的地震工程框架内的最佳PTMD设计和部署。